Safety-case for heating-stoves



(No Model.)

A. W. HERR.

SAFETY CASE FOR HEATING STOVES.

Patented Aug. 1.,. 1882..

w j f N. FUCHS, Pimmuumgmplwr. wasninglnn. D. C.

heating purposes.

y UNITED .STATES PATENT Ormea.,

AUeUs'rvv. HERR, oFoHIcAGo, ILLINOIS.

y SAFETY-CASE Foa HEATING-srovEs.

SPECIFICATIN forming part of Letters Patent No.

261,924, dated August 1, 1882.

Application filed March 28, 1882` (No model.)

In the drawings, Figure 1 is a front eleva-v tion of a safety-case embodying myinvention. Fig. 2 is a top or plan View of the same. Fig. 3 is a section inA the plane of the line x .c of Fig. 2, viewed in the Vdirection indicated by the arrow there shown; and Fig. 4 is a detail in section of one of the escape-valves.

My invention is especially adapted for preventing accidental tires from stoves in railwaycars, churches, school-houses, and other public places, in which accident might result in the ignition of the building, car, or other place in which the stove may be located, thus not only endangering property, but the lives ot' those exposed.

My object is to make provision for flooding such lires with water automatically while they are in their incipient state, or to prevent the originating of such tires; and to that end my invention consists in the means, substantially as herein described and set forth, which I employ for the purpose of accomplishing the object referred to.

A represents a stove adapted to be used for This stove may be constructed in any well-known or approved way, rendering it suitable as a heater for public places like those heretofore mentioned.

B is a base or platform on which the stove is located. This base or platform should be rmly bolted or otherwise secured to the door, especially when my improvements are applied to use in railway-cars, and in such cases the stove should also be bolted or otherwise rml y fastened to the base B. i

C is a'chamher surrounding the stove, and D I) are the walls which'inclose the chamber G.

In Fig. 3 I have shown the stove as nearly all broken away, in order to the better represent the interior ot' the casing.

The walls of the chamber G are double, a representing theouter portion ot' the wall, c the inner portion, and a" the intervening space.

The top of the space a is covered or sealed, as shown atb, and the said spaceor annularcham` ber is, with the exceptions hereinafter mentioned, intended to be water-tight, air-tight1 and steamtight. stand 011 the base B, as shown.

E E are valves located in the 'top ot' the chamber a. These valves are adapted to be held closed by means of weights or springs The walls ofthe chamber C thereon,.and to open outwardly by the steampressure exerted from within.

F is the root' of the chamber C, in which are ports c c. This root I make dome-shaped, yby preference.

G is a supplemental roof or covering, located upon the root' F, and c c are ports therein, located to register with the ports c c. The roof or, covering G isA rotary, and d is a handle attached thereto, by means of which it may be rotated with facility.

d d are fixed lugs or stops, between which the handle d extends, thus limiting the extent of rotation, but permitting sufficient rotation to carry the ports c c away from the ports c c, thereby allowing all the ports in the roof to be alternately opened and closed, as may be either desirable or necessary.

EI is the smoke stack or tlue. This fine en ters the top of the chamber G, and is connected to the stove; but between the stove and the roof is an elbow, e, as is clearly shown in Fig. 3.

lis an escape-Hue entering the top of the chamber a." and passing over the roof into the smoke-flue, andf is a cock or valve in the pipe I, and located for convenience of access out` side of the case surrounding the stove, and already described.

K is a draw-oft', also containing a shut-off or,

cock, and entering the lower part of the chamber a". Y

L is an air-duct entering the roof of the chamber C, and extending down near the inner wall thereof to a point somewhat above the oor of the said chamber, and extending into the draft of the stove, as shown in Fig. 3; and h is a regulator in the duct II. The upper end of the duct L is arranged horizontally and-made daring or funnel-shaped, :as shown. The cover Gr is slotted, as shown at t', so that IOO surface.

the pipe L will not prevent the said cover from being rotated in the manner described.

M is the door of the casing, which I make either double or single, and j j are ports in the said door, near the bottom.

In reducing my'iuvention to practice I pour a quantity of water through the pipe J into the chamber a", first closing the cock K. This Water of course becomes more or less heated, and may become sufficiently hot to generate steam. The outer case, therefore, Iwill radiate heat into the car. In case it may be expedient to allow some of the steam to escape, I open the cock f sufficiently for that purpose, when the steam will pass out through the pipe I into the smoke-Hue. It is also obvious that the chamber C will be heated to a high degree by the stove. The heated air is permitted to escape in a greater or less volume through the ports c and o', the cover G being turned, as described, so as to permit such escape, and these parts may be wholly closed in order to confine the heated air in the chamber C. The outer or fresh air enters the chamber C through the duet L, and thereby tinds its way into the stove and supports combustion. This supply may be regulated by means of the damper h, and when that damper is closed suiiicient air forthe supportof combustion will enter through the portsjj.

It will be perceived from the foregoing description and from reference to the drawings that a large radiating-surface is well utilized, and that the case is small in proportion to that It will also be perceived'that means are provided for controlling the heat with facility, and for regulating the supply of air forsupportingcombustion. Economyofspace and fuel results from this construction.

It is also obvious that in case of accidentsuch as the overturning of the car-the Water in the Water-jacket will escape through the valves E E, and thus dampen and put out the re and flood the floor or other lparts exposed to danger; also, an accident 'which would resuit in the puncturing of the Water-jacket Would result in the escape of the Water, while the jacket at the same time would protect or shield the stove from injury, and the damage by water would obviously be less than the danger from scattered incandescent fuel.

An outer case or jacket having a single Wall may be used with advantage as a shield or protector in combinationA with stoves used for drying purposes, such as drying lumber, tobacco, 85e.

When a double vWall is used the Water-space therein may contain `a liquid disinfectant, the vapor from which may be allowed to escape either by raising one or more of the valves E E or by means of oneor more conductingtubes entering the chamber c, and carried to the place where the disinfectant vapor may be needed, it being understood that this vapor be produced either by locating a stove in the chamber (l or by means of a steam-heater connected with the said chamber. Such an apparatus, as is obvions,would be very desirable in buildings or rooms in which the air is liable to be tainted and in rooms and hospitals where there are invalids to Whom medicated vapors would be beneficial.

Having thus described my invention,\vhat I claim as new, and desire to secure by Letters Patent, is-

1. A safety-case to heating-stoves, consisting of the base B, the Water-reservoir formed by the chamber a, and having therein a chamber, C, door M, provided with ports j j, valves E E, roof F, having therein the ports c c, rotary cover G, having therein the ports c c', air-tube L, escape-tube I, filling-tube J, and draw-off K, substantially as shown and described.

2. The combination,\vith a heating-stove, A, of the base B, Water-reservoir formed by the chamber ct, and having therein a chamber, G, door M, provided with ports j j, valves E E, roof F, having therein ports c c, rotary cover G, having therein the ports c c', air-tube L, escape-tube I, filling-tube J, smokefue H, and draw-off K, substantially as shown and described.

AUGUST W. HERR.

Witnesses:

HENRY FRANKFURTER, GEO. L. MOBRIDE. 

